Sex: The Detroit Zoo is home to three pudus: male T. Roy, female Carol, and a yet-unnamed female fawn born Sept. 7. The baby, which weighed only 1.06 kilograms (about 2.3 pounds) at birth, is the fourth pudu born at the Detroit Zoo since the animals’ introduction to the zoo in 2008.

Type: Mammal.

Home: South American rainforests from sea level to 2,900 feet.

Diet: Ferns, vines, shrubs, foliage of small trees.

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Average life span in the wild: 12-14 years.

Height: 14-15 inches at the shoulder.

Weight: Up to 29 pounds.

Length: 34 inches, three-inch tail.

Birth: After a relatively long gestation period of 210 days, one offspring is born. Offspring are weaned at one month. Pudus mature quickly, with females reaching maturity at six months and males at one year.

Now you know: The pudu is the world’s smallest deer. It has round ears, resembling the ears of a bear. The male pudu has tiny antlers that are hard to see. Pudus are thought to be solitary animals, but because of the remote region and difficult terrain in which they live, information on the pudu is scarce. Chilean pudu are also called southern pudu.

Predators: Cougars, other wild cats, foxes, domestic dogs. The pudu has a small, rounded body and short legs, enabling them to scoot through dense vegetation and among rocks to avoid threats. They can also climb fallen trees to escape predators.

Protection status: Thought to be seriously endangered. Habitat is threatened by logging and cattle ranching. Pudu also face competition from larger deer. Pudu are rare in captivity.